public void DeleteCourse(int id, CourseUpdateViewModel model)
{
try
{
_service.DeleteCourse(id, model);
}
catch (AppObjectNotFoundException)
{
throw new HttpResponseException(HttpStatusCode.NotFound);
}
}
/// <summary>
/// Deletes course with specific id
/// </summary>
/// <param name="id"></param>
/// <param name="model"></param>
/// <returns></returns>
public void DeleteCourse(int id, CourseUpdateViewModel model)
{
var course = (from x in _db.Courses
where x.ID == id
select x).SingleOrDefault();
if (course == null)
{
throw new AppObjectNotFoundException();
}
_db.Courses.Remove(course);
_db.SaveChanges();
}
public CourseDTO UpdateCourse(int id, CourseUpdateViewModel model)
{
//1.Validate
//2.Update
var courseEntity = (from x in _db.Courses
where x.ID == id
select x).SingleOrDefault();
if(courseEntity == null)
{
throw new AppObjectNotFoundException();
}
courseEntity.StartDate = model.StartDate;
courseEntity.EndDate = model.EndDate;
_db.SaveChanges();
var courseTemplate = (from x in _db.CourseTemplates
where x.TemplateID == courseEntity.TemplateID
select x).SingleOrDefault();
if(courseTemplate == null)
{
throw new ApplicationException("Ooooops");
}
var count = (from x in _db.CourseStudents
where x.CourseID == courseEntity.ID
select x).Count();
var result = new CourseDTO
{
ID = courseEntity.ID,
Name = courseTemplate.Name,
StartDate = courseEntity.StartDate,
EndDate = courseEntity.EndDate,
StudentCount = count
};
return result;
}